We build greenhouses trying to control nature and creating optimal growing conditions. But playing “Mother Nature” can be very expensive, the energy required for the daily operation of a greenhouse: lights which provide additional radiation, additional CO2, controlling the climate- temperature and humidity, creating air circulation to improve the climate and uniformity inside the greenhouse, etc. can increase significantly our monthly energy bill.

Many common technologies are inefficient, which was fine for as long as energy prices were low. But in recent years we experience a constant increase and instability in energy prices.  The increasing competition pushes the greenhouse’s growers to continuously improve their efficiency.

Greenhouses’ architects are constantly searching for new agricultural oriented energy-saving technologies which can increase the energy efficiency of the growing process without damaging the final yield. For example The number of growers using led lights keeps increasing, at the same time many companies develop new,  agricultural oriented led lights that are saving energy. But in this article, we’ll focus on the energy efficiency for controlling the climate.

 

Energy efficiency

If the outside temperatures are too low – the grower must use heating technology, if the outside temperatures are too high- the grower must use cooling technology. All types of technology require energy. In order to be more efficient, the grower strives to avoid energy losses. By isolating the growing area, the grower ensures the energy invested into controlling the temperature is not lost.

An important tool of isolation is thermal screens- the more layers of thermal screens inside the greenhouse, the higher isolation level, thus saving energy and improving the efficiency.

A major problem, growers face when isolating their greenhouses is an increase of humidity followed by the appearance of humidity-related diseases because the plants inside (vegetables, flowers or herbs) continue to evaporate water. The traditional solution is ventilation, a very inefficient and in some cases (when the outside humidity is high/rainy days) useless. According to growers, for lack of a better and an efficient solution, they continue using ventilation in order to prevent humidity problems while often compromising on the climate conditions inside their greenhouse.

 

How DryGair improves the energy efficiency

Isolating the greenhouse from the outside climate- preventing energy losses
Keeping the energy invested for heating inside the greenhouse.
Enables a separation between the treatment in humidity and  the treatment in temperature (more than 50 % of the energy used for heating is to reduce the humidity)
Investing a relatively low amount of energy to reduce the humidity (compared to other solutions)
Creating optimal climate conditions thanks to special air distribution concept.

DryGair is designed to integrate easily into greenhouses and to operate in an isolated environment in order to provide the optimal climate conditions for the plants. DryGair is a tool to maintain the desired temperature inside the greenhouse in an energy efficient method. Preventing the negative effects of humid air on the plants. DryGair solution saved different growers in different countries and climate conditions, 40-65% of the energy (after adding the energy required for DryGair dehumidifiers operation).